If I put my way back hat on; some of the limitations of which radio could be allowed to support GMRS/MURS was that the radio must have a non-removable antenna....

If I was to play with the GMRS/MURS community I would pick up a dedicated radio for such support...mostly because those radios are cheap...cheap I tell ya. I remember seeing some prices at 60 dollars for a 2 pack of what looked to be an all weather radio.

If I needed an all-in-one radio - I would look hard at maybe the digital / analog style radio that would let me setup groups that make accessing those areas with the appropriate settings match the standards. While the radio would not be approved of such use for transmitting; it would allow the one device to be used in an emergency.